聚偏氟乙烯(PVDF)是一种新型压电高分子材料，它具有独特的压电效应，近年来广泛用于振动控制领域。
PVDF is a new type of piezoelectric macromolecule material, which has particular effect of piezoelectric, and widely used in the region of vibration control in the last few years.
通常高压电缆使用的是特殊的防水高分子聚合材料，具有很高的绝缘强度。
High voltage cables are typically insulated with special water-resistant polymers that have high-dielectric strength.
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